M2N4-SLI
Contents
Notices................................................................................................vii
Safety information .............................................................................viii
About this guide.................................................................................. ix
Typography.......................................................................................... x
M2N4-SLI specifications summary....................................................... xi
Chapter 1: Product introduction
1.1
1.2
1.3
Welcome!.............................................................................. 1-1
Package contents ................................................................. 1-1
Special features.................................................................... 1-2
1.3.1
1.3.2
Product highlights................................................... 1-2
ASUS Special features............................................. 1-4
Chapter 2: Hardware information
2.1
2.2
Before you proceed .............................................................. 2-1
Motherboard overview.......................................................... 2-2
2.2.1
2.2.2
2.2.3
2.2.4
Placement direction ................................................ 2-2
Screw holes............................................................. 2-2
Motherboard layout ................................................ 2-3
Layout Contents..................................................... 2-4
2.3
2.4
Central Processing Unit (CPU) .............................................. 2-5
2.3.1
2.3.2
Installing the CPU.................................................... 2-5
Installing the heatsink and fan................................ 2-7
System memory.................................................................. 2-10
2.4.1
2.4.2
2.4.3
2.4.4
Overview............................................................... 2-10
Memory configurations .........................................2-10
Installing a DIMM ...................................................2-15
Removing a DIMM..................................................2-15
2.5
Expansion slots................................................................... 2-16
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6
Installing an expansion card..................................2-16
Configuring an expansion card..............................2-16
Interrupt assignments...........................................2-17
PCI slots................................................................ 2-17
PCI Express x1 slot ...............................................2-18
PCI Express x16 slots............................................2-18
iii
Contents
2.6
2.7
Jumpers .............................................................................. 2-19
Connectors ......................................................................... 2-22
2.7.1
2.7.2
Rear panel connectors ..........................................2-22
Internal connectors...............................................2-24
Chapter 3: Powering up
3.1
Starting up for the first time................................................ 3-1
Powering off the computer................................................... 3-2
3.2
3.2.1
3.2.2
Using the OS shut down function ........................... 3-2
Using the dual function power switch..................... 3-2
Chapter 4: BIOS setup
4.1 Managing and updating your BIOS ........................................ 4-1
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
Creating a bootable floppy disk.............................. 4-1
Updating the BIOS................................................... 4-2
Saving the current BIOS file.................................... 4-4
ASUS CrashFree BIOS 3 utility ................................ 4-5
ASUS EZ Flash 2 utility............................................ 4-7
ASUS Update utility ................................................ 4-8
4.2
BIOS setup program............................................................ 4-11
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
BIOS menu screen.................................................4-12
Menu bar............................................................... 4-12
Legend bar............................................................ 4-13
Menu items ........................................................... 4-13
Sub-menu items....................................................4-13
Configuration fields...............................................4-13
Pop-up window......................................................4-14
General help..........................................................4-14
4.3
Main menu........................................................................... 4-15
4.3.1
4.3.2
4.3.3
4.3.5
4.3.6
4.3.7
System Time ........................................................4-15
System Date ........................................................4-15
Legacy Diskette A ...............................................4-15
Primary and Secondary IDE Master/Slave .............4-16
SATA 1, 2, 3, 4.....................................................4-18
HDD SMART Monitoring.........................................4-19
iv
Contents
4.3.8
Installed Memory...................................................4-19
4.4
Advanced menu.................................................................. 4-20
4.4.1
4.4.3
4.4.4
4.4.5
4.4.6
JumperFree Configuration.....................................4-20
CPU Configuration.................................................4-23
PCIPnP................................................................... 4-25
Onboard Device Configuration ..............................4-26
SLI Configuration...................................................4-31
4.5
4.6
Power menu........................................................................ 4-32
4.5.1
4.5.2
4.5.3
4.5.4
ACPI Suspend Type ..............................................4-32
ACPI APIC Support ...............................................4-32
APM Configuration ................................................4-33
Hardware Monitor..................................................4-35
Boot menu.......................................................................... 4-37
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
Boot Device Priority..............................................4-37
Removable Drives..................................................4-38
Hard Disk Drives....................................................4-38
Boot Settings Configuration ................................4-39
Security................................................................. 4-41
4.7
4.8
Tools menu......................................................................... 4-43
ASUS EZ Flash 2.................................................................. 4-43
Exit menu............................................................................ 4-44
Chapter 5: Software support
5.1
5.2
Installing an operating system.............................................. 5-1
Support CD information........................................................ 5-1
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
Running the support CD.......................................... 5-1
Drivers menu........................................................... 5-2
Utilities menu.......................................................... 5-3
Manuals menu ......................................................... 5-4
ASUS Contact information...................................... 5-5
Other information ................................................... 5-5
5.3
Software information............................................................ 5-8
5.3.1
Cool ‘n’ Quiet!™ Technology ................................... 5-8
5.3.2
ASUS PC Probe II...................................................5-10
5.4
RAID configurations ............................................................ 5-16
v
Contents
5.4.1
5.4.2
Installing hard disks...............................................5-17
NVIDIA® RAID configurations.................................5-18
5.5
Creating a RAID driver disk .................................................5-25
Chapter 6: NVIDIA® SLI™ technology support
6.1
6.2
Overview............................................................................... 6-1
Requirements........................................................................ 6-1
Dual graphics card setup ...................................................... 6-2
6.2.1
6.2.2
6.2.3
Installing SLI-ready graphics cards.......................... 6-2
Installing the device drivers .................................... 6-5
Enabling the multi-GPU feature in Windows............ 6-5
vi
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
•
•
This device may not cause harmful interference, and
This device must accept any interference received including
interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
manufacturer’s instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics
card is required to assure compliance with FCC regulations. Changes
or modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate
this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise
emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
This class B digital apparatus complies with Canadian
ICES-003.
vii
Safety information
Electrical safety
•
•
To prevent electrical shock hazard, disconnect the power cable from
the electrical outlet before relocating the system.
When adding or removing devices to or from the system, ensure that
the power cables for the devices are unplugged before the signal cables
are connected. If possible, disconnect all power cables from the existing
system before you add a device.
•
•
•
Before connecting or removing signal cables from the motherboard,
ensure that all power cables are unplugged.
Seek professional assistance before using an adapter or extension cord.
These devices could interrupt the grounding circuit.
Make sure that your power supply is set to the correct voltage in your
area. If you are not sure about the voltage of the electrical outlet you
are using, contact your local power company.
•
If the power supply is broken, do not try to fix it by yourself. Contact a
qualified service technician or your retailer.
Operation safety
•
Before installing the motherboard and adding devices on it, carefully
read all the manuals that came with the package.
•
Before using the product, make sure all cables are correctly connected
and the power cables are not damaged. If you detect any damage,
contact your dealer immediately.
•
•
To avoid short circuits, keep paper clips, screws, and staples away from
connectors, slots, sockets and circuitry.
Avoid dust, humidity, and temperature extremes. Do not place the
product in any area where it may become wet.
•
•
Place the product on a stable surface.
If you encounter technical problems with the product, contact a
qualified service technician or your retailer.
The symbol of the crossed out wheeled bin indicates that the product
(electrical and electronic equipment) should not be placed in municipal
waste. Check local regulations for disposal of electronic products.
viii
About this guide
This user guide contains the information you need when installing and
configuring the motherboard.
How this guide is organized
This manual contains the following parts:
•
Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new
technology it supports.
•
Chapter 2: Hardware information
This chapter lists the hardware setup procedures that you have to
perform when installing system components. It includes description of
the switches, jumpers, and connectors on the motherboard.
•
•
Chapter 3: Powering up
This chapter describes the power up sequence, the vocal POST
messages, and ways of shutting down the system.
Chapter 4: BIOS setup
This chapter tells how to change system settings through the BIOS
Setup menus. Detailed descriptions of the BIOS parameters are also
provided.
•
•
Chapter 5: Software support
This chapter describes the contents of the support CD that comes
with the motherboard package.
Chapter 6: NVIDIA® SLI™ technology support
This chapter tells how to install SLI-ready PCI Express graphics cards.
ix
Where to find more information
Refer to the following sources for additional information and for product
and software updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware
and software products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as
warranty flyers, that may have been added by your dealer. These
documents are not part of the standard package.
Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the
following symbols used throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself
when trying to complete a task.
CAUTION: Information to prevent damage to the components
when trying to complete a task.
IMPORTANT: Instructions that you MUST follow to complete a
task.
NOTE: Tips and additional information to help you complete a
task.
Typography
Bold text
Italics
Indicates a menu or an item to select
Used to emphasize a word or a phrase
<Key>
Keys enclosed in the less-than and greater-than sign means
that you must press the enclosed key
Example: <Enter> means that you must press the Enter or
Return key
<Key1>+<Key2>+<Key3>
If you must press two or more keys simultaneously, the
key names are linked with a plus sign (+)
Example: <Ctrl>+<Alt>+<D>
Command
Means that you must type the command exactly as shown,
then supply the required item or value enclosed in
brackets
Example: At the DOS prompt, type the command line:
awdflash M2N4SLI.ROM
x
M2N4-SLI specifications summary
CPU
Socket AM2 for AMD Athlon™ 64 FX/AMD Athlon™ 64 X2
/AMD Athlon 64™/AMD Sempron™ processors
Supports AMD Cool ‘n’ Quiet™ Technology
AMD64 architecture enables simultaneous 32-bit and
64-bit computing
AMD Live!™ ready
Chipset
NVIDIA® nForce® 4 SLI™ MCP
2000 / 1600 MT/s
System bus
Memory
Dual-channel memory architecture
-
4 x 240-pin DIMM sockets support unbuffered
ECC/non-ECC DDR2 800/667/533 MHz memory
modules
-
Supports up to 8 GB system memory
Expansion slots
2 x PCI Express™ x16 slots
Supports NVIDIA® SLI™ Technology (both at x8 mode)
2 x PCI Express™ x1 slots
2 x PCI 2.2 slots
Scalable Link Interface
(SLI™)
Supports two identical NVIDIA® SLI™-ready graphics card
ASUS two-slot thermal design
Storage
NVIDIA® nForce® 4 SLI™ MCP supports:
-
-
-
2 x IDE connector for up to four Ultra DMA
133/100/66/33 devices
4 x Serial ATA 3.0 Gb/s connectors support four
Serial ATA devices
RAID 0, RAID 1, RAID 0+1, RAID 5, and JBOD
configurations spanning across Serial ATA drives
LAN
NVIDIA® nForce® 4 SLI™ MCP built-in Gigabit MAC with
external Attansic PHY
Supports TCP/IP Acceleration
Audio
USB 2.0
Realtek® ALC850 6-channel AC’97 CODEC
Supports Jack-Sensing and Enumeration Technology
Supports S/PDIF Out interface
Supports up to 10 USB 2.0/1.1 ports (six at mid-board,
four on the rear panel)
ASUS Exclusive
Overclocking features
AI Overclocking (intelligent CPU frequency tuner)
Stepless Frequency Selection(SFS) allows FSB tuning
from 200 MHz up to 400 MHz at 1 MHz increment
ASUS C.P.R. (CPU Parameter Recall)
Adjustable FSB/DDR2 ratio. Fixed PCI/PCIe frequencies
(continued on the next page)
xi
M2N4-SLI specifications summary
Special features
ASUS EZ DIY:
-
-
-
Q-Connector
ASUS CrashFree BIOS 3
ASUS EZ Flash 2
ASUS Q-Fan 2
ASUS MyLogo2
Rear panel
1 x Parallel port
1 x PS/2 keyboard port (purple)
1 x PS/2 mouse port (green)
1 x Serial (COM1) port
1 x Coaxial S/PDIF Out port
1 x LAN (RJ-45) ports
4 x USB 2.0/1.1 ports
6-channel audio ports
Internal connectors
3 x USB 2.0 connectors support six additional USB 2.0
ports
1 x Floppy disk drive connector
2 x IDE connector for four devices
4 x Serial ATA connectors
1 x CPU / 1 x Chassis / 1 x Power fan connectors
S/PDIF out connector
Front panel audio connector
CD/AUX audio in connectors
24-pin ATX power connector
4-pin ATX 12 V power connector
System panel connector
BIOS features
4 Mb BIOS ROM, AWARD BIOS, PnP, DMI 2.0, WfM2.0,
SM BIOS 2.3
Manageability
WOL by PME, WOR by PME, Chassis intrusion, PXE
Power requirements
ATX power supply with 24-pin and 4-pin 12V plugs
ATX 12V 2.0 compliant
Support CD contents
Device drivers
ASUS PC Probe II
ASUS Update
NVIDIA® MediaShield™ RAID
Anti-virus software (OEM version)
Form factor
ATX form factor: 12 in x 9 in (30.5 cm x 22.8 cm)
*Specifications are subject to change without notice.
xii
This chapter describes the motherboard
features and the new technologies
it supports.
Product
1
introduction
Chapter summary
1.1
1.2
1.3
Welcome!.............................................................................. 1-1
Package contents ................................................................. 1-1
Special features.................................................................... 1-2
ASUS M2N4-SLI
1.1
Welcome!
Thank you for buying an ASUS® M2N4-SLI motherboard!
The motherboard delivers a host of new features and latest technologies,
making it another standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it,
check the items in your package with the list below.
1.2
Package contents
Check your motherboard package for the following items.
Motherboard
Cables
ASUS M2N4-SLI motherboard
2 x Serial ATA signal cables
1 x Serial ATA power cable with dual plugs
1 x Ultra DMA/133 cable
1 x Floppy disk drive cable
Accessories
I/O shield
ASUS SLI™ bridge
1 x ASUS Q-Connector Kit
(USB, System panel; Retail version only)
Application CDs
Documentation
ASUS motherboard support CD
User guide
If any of the above items is damaged or missing, contact your retailer.
ASUS M2N4-SLI
1-1
1.3
Special features
1.3.1
Product highlights
Latest processor technology
The motherboard comes with a 940-pin AM2 socket that supports AMD
Athlon™ 64 X2/AMD Athlon™ 64/AMD Athlon™ 64 FX/AMD Sempron™
processors. With an integrated low-latency high-bandwidth memory
controller and a highly scalable HyperTransport™ technology-based system
bus, the motherboard provides a powerful platform for your diverse
computing needs, increased office productivity, and enhanced digital media
experience. See page 2-5 for details.
Scalable Link Interface (SLI™) technology
The NVIDIA® nForce4® Scalable Link Interface (SLI™) technology allows two
graphics processing units (GPUs) in a single system. This technology takes
advantage of the PCI Express™ bus architecture and features intelligent
hardware and software solutions that allows multiple GPUs to work
together and achieve exceptional graphics performance. See Chapter 6 for
details.
AMD Cool ‘n’ Quiet!™ Technology
The motherboard supports the AMD Cool ‘n’ Quiet!™ Technology that
dynamically and automatically changes the CPU speed, voltage and amount
of power depending on the task the CPU performs. See pages 4-25, 5-3
and 5-9.
Gigabit LAN
The motherboard comes with a Gigabit LAN controller built into the
NVIDIA® nForce™4 chipset to meet your growing networking needs. The
controller uses the PCI Express segment to provide faster data bandwidth
for your Internet, LAN, and file sharing requirements. See page 2-22 for
details.
DDR2 memory support
The motherboard supports DDR2 memory that features data transfer rates
of 800/667/533 MHz to meet the higher bandwidth requirements of the
latest 3D graphics, multimedia, and Internet applications. The dual-channel
DDR2 architecture doubles the bandwidth of your system memory to boost
system performance, eliminating bottlenecks with peak bandwidths of up
to 12.8 GB/s. See pages 2-10 to 2-13 for details.
1-2
Chapter 1: Product introduction
Serial ATA 3Gb/s RAID
The motherboard supports the next-generation Serial ATA hard drives
based on the SATA 3Gb/s storage specification. The onboard NVIDIA
nForce® 4 SLI™ MCP allows RAID 0, RAID 1, RAID 0+1, RAID 5, and JBOD.
See page 2-25.
PCI Express™ interface
The motherboard fully supports PCI Express, the latest I/O interconnect
technology that speeds up the PCI bus. PCI Express features point-to-point
serial interconnections between devices and allows higher clockspeeds by
carrying data in packets. This high speed interface is software compatible
with existing PCI specifications. See page 2-18 for details.
S/PDIF digital sound ready
The motherboard supports the S/PDIF Out function through the S/PDIF
interfaces on the rear panel. The S/PDIF technology turns your computer
into a high-end entertainment system with digital connectivity to powerful
audio and speaker systems. See page 2-23 for details.
USB 2.0 technology
The motherboard implements the Universal Serial Bus (USB) 2.0
specification, dramatically increasing the connection speed from the
12 Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is
backward compatible with USB 1.1. See page 2-23 and 2-27 for details.
ASUS M2N4-SLI
1-3
1.3.2
ASUS Special features
ASUS Two-slot thermal design
The motherboard is designed with two PCI Express x1 slots placed between
the PCI Express x16 slots allowing an increase in airflow between the two
PCI Express x16 graphics cards. This special design permits more room for
ventilation thus lowering the overall system temperature.
ASUS CrashFree BIOS 3
The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data
from a USB flash disk containing the BIOS file. This utility saves users
the cost and hassle of buying a replacement BIOS chip. See page 4-5 for
details.
ASUS EZ Flash 2
EZ Flash 2 is a user-friendly BIOS update utility. Simply press the predefined
hotkey to launch the utility and update the BIOS without entering the OS.
Update your BIOS easily without preparing a bootable diskette or using an
OS-based flash utility. See page 4-7 for details.
ASUS Q-Connector
ASUS Q-Connector allows you to easily connect or disconnect the chassis
front panel cables to the motherboard. This unique module eliminates the
trouble of connecting the system panel cables one at a time and avoiding
wrong cable connections.
ASUS Q-Fan 2 technology
The ASUS Q-Fan technology smartly adjusts the CPU and chassis fan
speeds according to the system loading to ensure quiet, cool, and efficient
operation. See page 4-35 for details.
ASUS MyLogo2™
This new feature present in the motherboard allows you to personalize and
add style to your system with customizable boot logos.
1-4
Chapter 1: Product introduction
This chapter lists the hardware setup
procedures that you have to perform
when installing system components.
It includes description of the jumpers
and connectors on the motherboard.
Hardware
2
information
Chapter summary
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Before you proceed .............................................................. 2-1
Motherboard overview.......................................................... 2-2
Central Processing Unit (CPU) .............................................. 2-5
System memory.................................................................. 2-10
Expansion slots................................................................... 2-16
Jumpers .............................................................................. 2-19
Connectors ......................................................................... 2-22
ASUS M2N4-SLI
2.1
Before you proceed
Take note of the following precautions before you install motherboard
components or change any motherboard settings.
•
Make sure that your power supply unit (PSU) can provide at least
the minimum power required by your system. See “8. ATX power
connectors” on page 2-26 for details.
•
•
Unplug the power cord from the wall socket before touching any
component.
Use a grounded wrist strap or touch a safely grounded object or
to a metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity
•
•
Hold components by the edges to avoid touching the ICs on them.
Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.
•
Before you install or remove any component, ensure that the ATX
power supply is switched off or the power cord is detached from
the power supply. Failure to do so may cause severe damage to the
motherboard, peripherals, and/or components.
Onboard LED
The motherboard comes with a standby power LED that lights up to
indicate that the system is ON, in sleep mode, or in soft-off mode.
This is a reminder that you should shut down the system and unplug
the power cable before removing or plugging in any motherboard
component. The illustration below shows the location of the onboard
LED.
M2N4-SLI
R
SB_PWR
ON
Standby
Power
OFF
Powered
Off
M2N4-SLI Onboard LED
ASUS M2N4-SLI
2-1
2.2
Motherboard overview
Before you install the motherboard, study the configuration of your chassis
to ensure that the motherboard fits into it.
Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so can cause you physical injury and damage
motherboard components.
2.2.1
Placement direction
When installing the motherboard, make sure that you place it into the
chassis in the correct orientation. The edge with external ports goes to the
rear part of the chassis as indicated in the image below.
2.2.2
Screw holes
Place six (6) screws into the holes indicated by circles to secure the
motherboard to the chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side towards
the rear of the chassis
M2N4-SLI
R
2-2
Chapter 2: Hardware information
2.2.3
Motherboard layout
23.0cm (9.0in)
KBPWR
PS/2KBMS
T: Mouse
B: Keyboard
CPU_FAN
ATX12V
COM1
USB12
USBPW34
LAN_USB34
AUDIO
Attansic
F1
M2N4-SLI
R
AUX
ALC850
PCIEX16_1
FP_AUDIO
PCIEX1_1
SPDIF_OUT
NVIDIA NF4 SLI
PCIEX1_2
PCIEX16_2
PCI1
CLRTC
4Mb
BIOS
CR2032 3V
Lithium Cell
CMOS Power
SB_PWR
PCI2
F_PANEL
CHASSIS
USB56
USB78
USB910
USBPW56
USBPW78
USBPW910
FLOPPY
ASUS M2N4-SLI
2-3
2.2.4
Layout Contents
Slots
Page
1. DDR2 DIMM slots
2. PCI slots
2-10
2-17
2-18
2-18
3. PCI Express x16 slot
4. PCI Express x1 slot
Slots
Page
2-19
1. CLRTC (3-pin CLRTC1)
2. USB device wake-up (3-pin USBPW12, USBPW34, USBPW56,
USBPW78, USBPW910)
2-20
2-21
3. Keyboard Power (3-pin KBPWR)
Rear panel connectors
Page
1. PS/2 mouse port (green)
2. Parallel port
2-22
2-22
2-22
2-22
2-22
2-22
2-22
2-23
2-23
2-23
2-23
3. Serial (COM) port
4. LAN (RJ-45) port
5. Line In port (light blue)
6. Microphone port (pink)
7. Line Out port (lime)
8. USB 2.0 ports 3 and 4
9. USB 2.0 ports 1 and 2
10. Coaxial S/PDIF out port
11. PS/2 keyboard port (purple)
Internal connectors
Page
1. Floppy disk drive connector (34-1 pin FLOPPY)
2. Primary/Secondary IDE connector (40-1 pin PRI_IDE, SEC_IDE)
3. nForce 4 Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4)
4. CPU fan connector (3-pin CPU_FAN)
2-23
2-24
2-25
2-26
2-26
2-26
2-27
2-28
2-28
2-29
2-29
2-30
5. Power fan connector (3-pin PWR_FAN)
6. Chassis fan connector (3-pin CHA_FAN)
7. USB headers (10-1 USB56, USB78, USB910)
8. ATX power connector (24-pin EATXPWR1)
9. ATX 12V power connector (4-pin ATX12V1)
10. Internal audio connectors (4-pin CD/AUX)
11. Front panel audio connector (10-1 pin FP_AUDIO)
12. System panel connector (20-8 pin PANEL)
•
•
•
•
•
System power LED (2-pin LED)
Hard disk drive activity LED (2-pin IDE_LED)
System warning speaker (4-pin SPEAKER)
ATX power button/soft-off button (2-pin PWR)
Reset button (2-pin RESET)
2-4
Chapter 2: Hardware information
2.3
Central Processing Unit (CPU)
The motherboard comes with a 940-pin AM2 socket designed for the AMD
Athlon™ 64 X2/AMD Athlon™ 64 FX/AMD Athlon™ 64 and AMD Sempron™
processors.
Make sure you use a CPU is designed for the AM2 socket. The CPU fits in
only one correct orientation. DO NOT force the CPU into the socket to
prevent bending the connectors on the socket and damaging the CPU!
2.3.1
Installing the CPU
To install a CPU:
1. Locate the CPU socket on the motherboard.
M2N4-SLI
R
M2N4-SLI CPU Socket AM2
2. Unlock the socket by pressing
the lever sideways, then lift it up
to a 90º angle.
Socket lever
Make sure that the socket lever is lifted up to a 90º angle; otherwise,
the CPU will not fit in completely.
ASUS M2N4-SLI
2-5
3. Position the CPU above the
socket such that the CPU corner
with the gold triangle matches
the socket corner with a small
triangle.
Gold triangle
Small triangle
5. When the CPU is in place, push
down the socket lever to secure
the CPU. The lever clicks on the
side tab to indicate that it is
locked.
6. Install a CPU heatsink and fan
following the instructions that
came with the heatsink package.
2-6
Chapter 2: Hardware information
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